Self-assembly of platinum nanowires on HOPG

Platinum nanoparticles were obtained on highly oriented pyrolytic graphite (HOPG) in 0.01 M H2Cl6Pt and 0.1 M HCl solution by open circuit deposition. The resulting structures were characterized electrochemically by cyclic voltammetry and morphologically by ex situ scanning tunneling microscopy. The...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Quaino, P. M., Gennero de Chialvo, Maria Rosa, Vela, María Elena, Salvarezza, Roberto Carlos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2005
Materias:
Química
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/176061
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-176061
record_format dspace
spelling I19-R120-10915-1760612025-02-04T04:15:22Z http://sedici.unlp.edu.ar/handle/10915/176061 Self-assembly of platinum nanowires on HOPG Quaino, P. M. Gennero de Chialvo, Maria Rosa Vela, María Elena Salvarezza, Roberto Carlos 2005 2025-02-03T17:45:42Z en Química Platinum nanoparticles were obtained on highly oriented pyrolytic graphite (HOPG) in 0.01 M H2Cl6Pt and 0.1 M HCl solution by open circuit deposition. The resulting structures were characterized electrochemically by cyclic voltammetry and morphologically by ex situ scanning tunneling microscopy. The deposition on the substrate occurs preferentially at step edges instead of flat terraces. The density of particles as well as their dimension depend on the time of immersion in the hexachloroplatinic solution. Pt nanowires are formed for a 3 h immersion time whereas for a 90 s immersion the typical clusters are mainly hemispherical. Se obtuvieron nanocintas de platino sobre bordes de escalón de grafito pirolítico altamente orientado (HOPG). La deposición se llevó a cabo a circuito abierto en una solución 0.01 M de H2PtCl6 y 0.1 M de HCl. Las estructuras resultantes fueron caracterizadas electroquímicamente mediante voltametría cíclica y morfológicamente mediante microscopía de efecto túnel ex-situ. Tanto la densidad de partículas y como su dimensión dependen del tiempo de inmersión en la solución del complejo hexacloroplatínico. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Articulo Articulo http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 215-224
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
spellingShingle Química
Quaino, P. M.
Gennero de Chialvo, Maria Rosa
Vela, María Elena
Salvarezza, Roberto Carlos
Self-assembly of platinum nanowires on HOPG
topic_facet Química
description Platinum nanoparticles were obtained on highly oriented pyrolytic graphite (HOPG) in 0.01 M H2Cl6Pt and 0.1 M HCl solution by open circuit deposition. The resulting structures were characterized electrochemically by cyclic voltammetry and morphologically by ex situ scanning tunneling microscopy. The deposition on the substrate occurs preferentially at step edges instead of flat terraces. The density of particles as well as their dimension depend on the time of immersion in the hexachloroplatinic solution. Pt nanowires are formed for a 3 h immersion time whereas for a 90 s immersion the typical clusters are mainly hemispherical.
format Articulo
Articulo
author Quaino, P. M.
Gennero de Chialvo, Maria Rosa
Vela, María Elena
Salvarezza, Roberto Carlos
author_facet Quaino, P. M.
Gennero de Chialvo, Maria Rosa
Vela, María Elena
Salvarezza, Roberto Carlos
author_sort Quaino, P. M.
title Self-assembly of platinum nanowires on HOPG
title_short Self-assembly of platinum nanowires on HOPG
title_full Self-assembly of platinum nanowires on HOPG
title_fullStr Self-assembly of platinum nanowires on HOPG
title_full_unstemmed Self-assembly of platinum nanowires on HOPG
title_sort self-assembly of platinum nanowires on hopg
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/176061
work_keys_str_mv AT quainopm selfassemblyofplatinumnanowiresonhopg
AT gennerodechialvomariarosa selfassemblyofplatinumnanowiresonhopg
AT velamariaelena selfassemblyofplatinumnanowiresonhopg
AT salvarezzarobertocarlos selfassemblyofplatinumnanowiresonhopg
_version_ 1845116746228301824

Ejemplares similares